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Ağustos, 2023 tarihine ait yayınlar gösteriliyor

Stress and insomnia linked to irregular heart rhythms after menopause

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A study of more than 83,000 questionnaires by women ages 50-79, found more than 25% developed irregular heart rhythms, known as atrial fibrillation, which may increase their risk for stroke and heart failure. http://dlvr.it/SvR8KY

Brain signals transformed into speech through implants and AI

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Researchers have succeeded in transforming brain signals into audible speech. By decoding signals from the brain through a combination of implants and AI, they were able to predict the words people wanted to say with an accuracy of 92 to 100%. http://dlvr.it/SvPcB3

Your genes influence whether depression leads to other diseases

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A new study shows that people suffering from hospital-treated depression may have a high risk of developing conditions such as substance abuse, bipolar disorder, schizophrenia and anxiety -- depending on their genetic predisposition to the individual disorder. http://dlvr.it/SvMBh7

More sleep could reduce impulsive behavior in children

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Sleep is a critical part of a child's overall health, but it can also be an important factor in the way they behave. According to a new study, getting enough sleep can help children combat the effects of stressful environments. http://dlvr.it/SvLyW1

New human cell-based 3D model reveals insights into how immune cells contribute to Alzheimer's disease

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In the new study, the team used the model to demonstrate that as Alzheimer's pathology accumulates in the brain, specific types of immune cells called CT8+ T Cells surge into the brain and amplify the destruction caused by neuroinflammation. http://dlvr.it/SvBQMT

A fitness tracker for brain health: How a headband can identify early signs of Alzheimer's disease in your sleep

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Researchers make progress in developing a digital biomarker that detects early signs of Alzheimer's disease in brainwave patterns using a simple 'wearable' headband at night. http://dlvr.it/Sv6j58

How artificial intelligence gave a paralyzed woman her voice back

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Researchers have developed a brain-computer interface (BCI) that has enabled a woman with severe paralysis from a brainstem stroke to speak through a digital avatar. http://dlvr.it/Sv545X

Study adds to evidence that Parkinson's starts in the gut

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Many researchers believe that the neurodegenerative disorder gets started in the gut. Research now suggests that an autoimmune reaction may be driving those early events. http://dlvr.it/Sv2T0P

Formerly depressed patients continue to focus on negative

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People who have recovered from a major depressive episode, when compared with individuals who have never experienced one, tend to spend more time processing negative information and less time processing positive information, putting them at risk for a relapse, according to new research. http://dlvr.it/Sv2DNR

PS gene-editing shown to restore neural connections lost in brain disorder

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A new study has demonstrated the ability for gene therapy to repair neural connections for those with the rare genetic brain disorder known as Hurler syndrome. http://dlvr.it/Sv0GSS

New insights into the protein-mediated motor neuron loss in amyotrophic lateral sclerosis

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Amyotrophic lateral sclerosis (ALS) is a widespread neurodegenerative disease caused by the loss of neurons that control movement. Although abnormal accumulation of proteins called TDP-43 accompanies ALS, its role in disease progression is not well understood. Recently, using novel mouse models of ALS, researchers have identified the neurological spreading patterns through which TDP-43 perpetuates the degeneration of the movement-related neural circuitry. http://dlvr.it/StzBJk

Anti-obesity drug improves associative learning in people with obesity

Obesity leads to altered energy metabolism and reduced insulin sensitivity of cells. The so-called 'anti-obesity drugs' are increasingly used to treat obesity and have caused tremendous interest, especially in the USA. Researchers have now shown in people with obesity that reduced insulin sensitivity affects learning of sensory associations. A single dose of the anti-obesity drug liraglutide was able to normalize these changes and restore the underlying brain circuit function. http://dlvr.it/StxTbk

Uncovering the role of somatostatin signaling in the brain

Somatostatin, a signaling molecule produced by many inhibitory neurons in the brain, broadly dampens communication among a variety of cell types in the prefrontal cortex and promotes exploratory and risk-taking-like behavior in mice. http://dlvr.it/Stw0pX

Largest genetic study of brain structure identifies how the brain is organized

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The largest ever study of the genetics of the brain -- encompassing some 36,000 brain scans -- has identified more than 4,000 genetic variants linked to brain structure. http://dlvr.it/SttgJ7

Anxious people use less suitable section of brain to control emotions

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When choosing their behavior in socially difficult situations, anxious people use a less suitable section of the forebrain than people who are not anxious. http://dlvr.it/Stt3Yg

Platelets can replicate the benefits of exercise in the brain

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Researchers have found an injection of a specific blood factor can replicate the benefits of exercise in the brain. They've discovered that platelets secrete a protein, exerkine CXCL4/Platelet factor 4 or PF4, that rejuvenates neurons in aged mice in a similar way to physical exercise. This protein, which is released from platelets after exercise, results in regenerative and cognitive improvements when injected into aged mice. http://dlvr.it/StsTMs

Certain sugars affect brain 'plasticity,' helping with learning, memory, recovery

Can you recognize an old friend, but forget what you had for breakfast yesterday? Our brains constantly rearrange their circuitry to retain information, but the molecular basis behind this process isn't well understood. New research suggests that complex sugars called glycosaminoglycans might play a major role in the 'plasticity' of the brains of mice and could be used to repair neural connections after injury. http://dlvr.it/Stpr35

Robotic exoskeletons and neurorehabilitation for acquired brain injury: Determining the potential for recovery of overground walking

Developing a framework for future research requires a comprehensive approach based on diagnosis, stage of recovery, and domain. http://dlvr.it/Stm53c

New concussion headset shows when it's likely safe to return to play

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A new digital headset designed to measure alterations in brain function could change decisions about how quickly an athlete is ready to return to play after a concussion. In an evaluation of the device, researchers found it revealed brain changes even in athletes whose concussion symptoms had gone away, suggesting they could be playing too soon. http://dlvr.it/Stl1g0

Study shows deep brain stimulation encouraging for stroke patients

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A first-in-human trial of deep brain stimulation (DBS) for post-stroke rehabilitation patients has shown that using DBS to target the dentate nucleus -- which regulates fine-control of voluntary movements, cognition, language, and sensory functions in the brain -- is safe and feasible. http://dlvr.it/StfH1H

Wildfires and farming activities may be top sources of air pollution linked to increased risk, cases of dementia

No amount of air pollution is good for the brain, but wildfires and the emissions resulting from agriculture and farming in particular may pose especially toxic threats to cognitive health, according to new research. http://dlvr.it/Stdzs1

Social media use interventions alleviate symptoms of depression

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Receiving therapy for problematic social media use can be effective in improving the mental wellbeing of people with depression, a new study finds. http://dlvr.it/StbgH8

A therapeutic target for Alzheimer's disease discovered

Scientists have succeeded in reversing certain cognitive manifestations associated with Alzheimer's disease in an animal model of the disease. http://dlvr.it/StXpLk

How psychedelic drugs affect a rat's brain

Researchers have developed a technique for simultaneously measuring electrical signals from 128 areas of the brain in awake rats. They have then used the information to measure what happens to the neurons when the rats are given psychedelic drugs. The results show an unexpected and simultaneous synchronization among neurons in several regions of the brain. http://dlvr.it/StVQnF

'Ebb and flow' brain mechanism that drives learning identified

Researchers have long thought that rewards like food or money encourage learning in the brain by causing the release of the 'feel-good' hormone dopamine, known to reinforce storage of new information. Now, a new study in rodents describes how learning still occurs in the absence of an immediate incentive. http://dlvr.it/StRrKQ

Mothers experiencing depression can still thrive as parents

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The proverb 'It takes a village to raise a child' takes on new significance when a mother of a child is experiencing depression. http://dlvr.it/StQprK

Laboratory research finds gluten caused brain inflammation in mice

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Researchers have found wheat gluten causes brain inflammation in mice. http://dlvr.it/StNRrs

What causes spontaneous eye movements in albinism?

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People with albinism often have poor vision. A new study reveals the underlying cause. http://dlvr.it/StN7fq

Key cause of restricted blood flow to the brain in vascular dementia

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Researchers have uncovered a potential route to developing the first ever drug treatments for vascular dementia that directly target a cause of the condition. The research has shed light on how high blood pressure causes changes to arteries in the brain, a process that leads to the devastating condition. http://dlvr.it/StMk5b

Memory, forgetting, and social learning

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One of the most actively debated questions about human and non-human culture is this: under what circumstances might we expect culture, in particular the ability to learn from one another, to be favored by natural selection? Researchers have developed a simulation model of the evolution of social learning. They showed that the interplay between learning, memory and forgetting broadens the conditions under which we expect to see social learning to evolve. http://dlvr.it/StKsV6

Symptoms of the body and the mind are frequent fellow travelers

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Chronic pain is often accompanied by depression and anxiety. Experts discuss the relationship between pain, the most common symptom for which individuals visit a physician, and depression and anxiety, the two most prevalent mental health conditions worldwide. Noting the existence of a feedback loop, experts highlight the importance of not neglecting psychological symptoms in patients experiencing pain. http://dlvr.it/StKZSc

Researchers propose a data-driven strategy to stratify risk of progression from mild cognitive impairment to Alzheimer's disease

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The projected cost of caring for millions of individuals who have Alzheimer's disease (AD) worldwide will exceed a $1 trillion in a few years. In addition to the enormous health burden, patients and their caregivers experience financial, physical and psychological strain. A theory regarding repeated drug failure in AD is that patients undergoing experimental therapies are selected too late in the disease process. Therefore, it is important to identify patients at a high risk of progression to AD in early stages of the disease. To help identify persons who could benefit from early interventions, researchers from Boston University have developed a deep learning framework that can stratify individuals with mild cognitive impairment (MCI) based on their risk of advancing to AD. http://dlvr.it/StHqHd

They got more than me! The brain circuit for socially subjective reward valuation

Researchers have identified one of the key brain circuits for deciding the value of a reward based on the rewards that others have received, known as socially subjective reward valuation. A better understanding of the roles of this circuit, from the medial prefrontal cortex to the lateral hypothalamus, may be helpful for the future diagnosis and treatment of patients with injuries or alterations in these regions. http://dlvr.it/StDSZD

A mother's diet can protect her grandchildren's brains: genetic model study

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Mothers who eat apples and herbs in early pregnancy could be protecting the brain health of their children and grandchildren, a study using genetic models has found. The discovery is part of a project that found a mother's diet can affect not just her child's brain but also those of her grandchildren. http://dlvr.it/StC6Mn

Newly identified lipid in breast milk might reduce cerebral palsy in infants

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In experiments using neonatal mice, researchers have identified a fatty molecule in breast milk that triggers a process in which stem cells in the brain produce cells that create new white matter, reversing brain injury. http://dlvr.it/St8zZN

New neuroimaging approach could improve diagnosis of schizophrenia

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New research has identified age-related changes in brain patterns associated with the risk for developing schizophrenia. The discovery could help clinicians identify the risk for developing mental illness earlier and improve treatment options. http://dlvr.it/St6NV2

Study raises possibility of immunotherapy treatment for ALS

New research reveals a type of monoclonal antibody already tested in certain forms of cancer may be a promising treatment in stopping the progression of amyotrophic lateral sclerosis, or ALS, a fatal neurodegenerative disease. http://dlvr.it/St4mfS

Sweet smell of success: Simple fragrance method produces major memory boost

When a fragrance wafted through the bedrooms of older adults for two hours every night for six months, memories skyrocketed. Participants in this study reaped a 226% increase in cognitive capacity compared to the control group. The researchers say the finding transforms the long-known tie between smell and memory into an easy, non-invasive technique for strengthening memory and potentially deterring dementia. http://dlvr.it/St4mXj

Half the population to have a mental health disorder by 75

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Scientists analyzed data from more than 150,000 adults across 29 countries between 2001 and 2022 with results demonstrating the high prevalence of mental health disorders, with 50 per cent of the population developing at least one disorder by the age of 75. http://dlvr.it/St24nW